Call Recording - Call Quality Reduced and Glitchy

[DigitalDaz]

Is there any transcoding going on on the call?

 

[AIC2000]

No, and I've used 3 different provider networks so it isn't a bandwidth issue either.

The codecs I'm using are:

inbound-codecs: G7221@32000h,G7221@16000h,G722,PCMU,PCMA,GSM
outbound-codecs: PCMU,PCMA,GSM

 

[DigitalDaz]

How many concurrent calls do you have?

 

[AIC2000]

At the moment 0. At peak, maybe 40-50 but only for short bursts of time. While it had that many calls, I actually tested it and it appeared fine. It's only after a certain amount of time the choppy calls start happening - even when load is literally zero!

 

[AIC2000]

This is my FreeSWITCH Status:

UP 0 years, 0 days, 8 hours, 4 minutes, 29 seconds, 589 milliseconds, 320 microseconds
FreeSWITCH (Version 1.6.20 -37-987c9b9 64bit) is ready
408 session(s) since startup
8 session(s) - peak 45, last 5min 8
0 session(s) per Sec out of max 30, peak 10, last 5min 4
1000 session(s) max
min idle cpu 0.00/98.77
Current Stack Size/Max 240K/8192K

 

[AIC2000]

OK I've got an old Cisco 7940 sat in the far corner of my desk. Whenever I try and use that when call recording is enabled, it's by far the worst performer. Misses out 75% of the call. When I disable call recording on Fusion - it works flawless.

I've never had this issue with call recording on Asterisk before, so really unsure as to what seems to be causing the resource shortage - this is a brand new (newly installed OVH tell me as they were low on stock when I chased the order 2 days ago) dedicated server with 4 cores / 8 threads and 32GB of RAM. The whole system works flawlessly with 50 concurrent calls and doesn't slow down a bit. I enable call recording and the whole system isn't showing any strain at all, but calls go insanely poor quality.

I've upgraded, and moved FusionPBX to 3x sets of new hardware (1x shared cloud VM, 1x dedicated cloud VM, and 1x powerful dedicated server). Exactly the same instance on all.

 

[DigitalDaz]

I cannot fathom this.

I have a client down in London who right this minute has 7 calls on, all calls there get recorded, the box is not very powerful at all, they do about 2500 calls a day and have no problems whatsoever.

 

[AIC2000]

Exactly. It's crazy! I have some ring groups setup, and some call centre queues - call centre queues are set to record inbound too.
Do you record call centre queues?
I have about 5 different domains, and only 50 extensions registered across the board. Average call load is under 5. Resource / htop graphs are basically empty!

 

[DigitalDaz]

I have another box that has about 50 queues, they record all calls too. They have about 60+ extensions. The one in London has 65 extensions.

 

[AIC2000]

This absolutely can't be resource - it has to be configuration or something. Nothing has changed though and I've moved Fusion to new hardware and copied over just the scripts (as per your really useful guide!) and the issue carries across.
I've not specified codecs or anything. Obviously skipping media in the extension settings fixes the issue - that's because it doesn't / can't record the call though!

 

[AIC2000]

I was thinking, because I'm transferring all of the config and data over to new hardware, is it possible that after all this time, it's a config issue of some sort?

https://www.pbxforums.com/threads/moving-fusionpbx-to-new-hardware.818/

When you install FusionPBX / FreeSwitch does it optimise for the hardware it's being installed on? Therefore moving hardware wouldn't update them optimisations which is what could be causing the limitations?

 

[DigitalDaz]

No, nothing that I am aware of, the only thing I can possibly thing of is the timer its using, brb...

 

[DigitalDaz]

In the fs_cli what does: show timer
give you?

Mine is:

freeswitch@xdc-pbx1> show timer 
type,name,ikey
timer,soft,CORE_SOFTTIMER_MODULE

 

[AIC2000]

On a really beefy server, I just downloaded this:
https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-9.4.0-amd64-netinst.iso

from here:
https://www.debian.org/CD/netinst/

and then followed your video guide to move the hardware over.

 

[AIC2000]

freeswitch@pbx> show timer
type,name,ikey
timer,soft,CORE_SOFTTIMER_MODULE

1 total.

 

[AIC2000]

I'm starting to come to terms with my only last hope is to literally clean install, and set everything up from scratch again manually, just incase I've screwed up one of the configs somewhere along the line (I doubt it!) or that FS is optimised in some way to its original (less capable) hardware.

 

[DigitalDaz]

Try doing the timer tests in this thread: https://freeswitch.org/jira/si/jira.issueviews:issue-html/FS-6211/FS-6211.html

 

[DigitalDaz]

On a really beefy server, I just downloaded this:
https://cdimage.debian.org/debian-cd/current/amd64/iso-cd/debian-9.4.0-amd64-netinst.iso

from here:
https://www.debian.org/CD/netinst/

and then followed your video guide to move the hardware over.

Absolutely, there are known issues with Debian 9 at the moment. You should be using 8

 

[AIC2000]

freeswitch@pbx> timer_test
Avg: 20.000ms Total Time: 1000.036ms

2018-06-21 09:13:37.709941 [CONSOLE] mod_commands.c:955 Timer Test: 1 sleep 20 20035
2018-06-21 09:13:37.729936 [CONSOLE] mod_commands.c:955 Timer Test: 2 sleep 20 20000
2018-06-21 09:13:37.749940 [CONSOLE] mod_commands.c:955 Timer Test: 3 sleep 20 20002
2018-06-21 09:13:37.769936 [CONSOLE] mod_commands.c:955 Timer Test: 4 sleep 20 20002
2018-06-21 09:13:37.789951 [CONSOLE] mod_commands.c:955 Timer Test: 5 sleep 20 19998
2018-06-21 09:13:37.809936 [CONSOLE] mod_commands.c:955 Timer Test: 6 sleep 20 19999
2018-06-21 09:13:37.829941 [CONSOLE] mod_commands.c:955 Timer Test: 7 sleep 20 20002
2018-06-21 09:13:37.849936 [CONSOLE] mod_commands.c:955 Timer Test: 8 sleep 20 20002
2018-06-21 09:13:37.869951 [CONSOLE] mod_commands.c:955 Timer Test: 9 sleep 20 19996
2018-06-21 09:13:37.889936 [CONSOLE] mod_commands.c:955 Timer Test: 10 sleep 20 20002
2018-06-21 09:13:37.909942 [CONSOLE] mod_commands.c:955 Timer Test: 11 sleep 20 20000
2018-06-21 09:13:37.929937 [CONSOLE] mod_commands.c:955 Timer Test: 12 sleep 20 19998
2018-06-21 09:13:37.949941 [CONSOLE] mod_commands.c:955 Timer Test: 13 sleep 20 20002
2018-06-21 09:13:37.969936 [CONSOLE] mod_commands.c:955 Timer Test: 14 sleep 20 19960
2018-06-21 09:13:37.989944 [CONSOLE] mod_commands.c:955 Timer Test: 15 sleep 20 20037
2018-06-21 09:13:38.009936 [CONSOLE] mod_commands.c:955 Timer Test: 16 sleep 20 20000
2018-06-21 09:13:38.029943 [CONSOLE] mod_commands.c:955 Timer Test: 17 sleep 20 20002
2018-06-21 09:13:38.049937 [CONSOLE] mod_commands.c:955 Timer Test: 18 sleep 20 20002
2018-06-21 09:13:38.069944 [CONSOLE] mod_commands.c:955 Timer Test: 19 sleep 20 19997
2018-06-21 09:13:38.089936 [CONSOLE] mod_commands.c:955 Timer Test: 20 sleep 20 20000
2018-06-21 09:13:38.109937 [CONSOLE] mod_commands.c:955 Timer Test: 21 sleep 20 20004
2018-06-21 09:13:38.129937 [CONSOLE] mod_commands.c:955 Timer Test: 22 sleep 20 19996
2018-06-21 09:13:38.149944 [CONSOLE] mod_commands.c:955 Timer Test: 23 sleep 20 20000
2018-06-21 09:13:38.169936 [CONSOLE] mod_commands.c:955 Timer Test: 24 sleep 20 20001
2018-06-21 09:13:38.189942 [CONSOLE] mod_commands.c:955 Timer Test: 25 sleep 20 20000
2018-06-21 09:13:38.209937 [CONSOLE] mod_commands.c:955 Timer Test: 26 sleep 20 20001
2018-06-21 09:13:38.229937 [CONSOLE] mod_commands.c:955 Timer Test: 27 sleep 20 20000
2018-06-21 09:13:38.249936 [CONSOLE] mod_commands.c:955 Timer Test: 28 sleep 20 20003
2018-06-21 09:13:38.269945 [CONSOLE] mod_commands.c:955 Timer Test: 29 sleep 20 19995
2018-06-21 09:13:38.289936 [CONSOLE] mod_commands.c:955 Timer Test: 30 sleep 20 20000
2018-06-21 09:13:38.309941 [CONSOLE] mod_commands.c:955 Timer Test: 31 sleep 20 20000
2018-06-21 09:13:38.329936 [CONSOLE] mod_commands.c:955 Timer Test: 32 sleep 20 20002
2018-06-21 09:13:38.349946 [CONSOLE] mod_commands.c:955 Timer Test: 33 sleep 20 20005
2018-06-21 09:13:38.369936 [CONSOLE] mod_commands.c:955 Timer Test: 34 sleep 20 19993
2018-06-21 09:13:38.389940 [CONSOLE] mod_commands.c:955 Timer Test: 35 sleep 20 20002
2018-06-21 09:13:38.409937 [CONSOLE] mod_commands.c:955 Timer Test: 36 sleep 20 19999
2018-06-21 09:13:38.429939 [CONSOLE] mod_commands.c:955 Timer Test: 37 sleep 20 20000
2018-06-21 09:13:38.449936 [CONSOLE] mod_commands.c:955 Timer Test: 38 sleep 20 19962
2018-06-21 09:13:38.469945 [CONSOLE] mod_commands.c:955 Timer Test: 39 sleep 20 20036
2018-06-21 09:13:38.489937 [CONSOLE] mod_commands.c:955 Timer Test: 40 sleep 20 20001
2018-06-21 09:13:38.509937 [CONSOLE] mod_commands.c:955 Timer Test: 41 sleep 20 20000
2018-06-21 09:13:38.529937 [CONSOLE] mod_commands.c:955 Timer Test: 42 sleep 20 20008
2018-06-21 09:13:38.549946 [CONSOLE] mod_commands.c:955 Timer Test: 43 sleep 20 19998
2018-06-21 09:13:38.569936 [CONSOLE] mod_commands.c:955 Timer Test: 44 sleep 20 19998
2018-06-21 09:13:38.589941 [CONSOLE] mod_commands.c:955 Timer Test: 45 sleep 20 19997
2018-06-21 09:13:38.609936 [CONSOLE] mod_commands.c:955 Timer Test: 46 sleep 20 20004
2018-06-21 09:13:38.629942 [CONSOLE] mod_commands.c:955 Timer Test: 47 sleep 20 19996
2018-06-21 09:13:38.649936 [CONSOLE] mod_commands.c:955 Timer Test: 48 sleep 20 19998
2018-06-21 09:13:38.669944 [CONSOLE] mod_commands.c:955 Timer Test: 49 sleep 20 20002
2018-06-21 09:13:38.689936 [CONSOLE] mod_commands.c:955 Timer Test: 50 sleep 20 19999

 

[AIC2000]

Oh dear, it would help if my posts were half accurate. I meant to signify me using the netinst 64bit OS, the file I actually downloaded and installed is:

debian-8.10.0-amd64-netinst.iso

Sorry!